DTC Logic
DTC DETECTION LOGIC 
Diagnosis Procedure
1.REPLACE BCM
When DTC "U1010" is detected, replace BCM.
>> Replace BCM. Refer to BCS "Removal and Installation".
U1000 CAN CommDTC Logic DTC DETECTION LOGIC NOTE: U1000 can be set if a module harness was disconnected and reconnected, perhaps during a repair. Confirm that there are actual CAN diagnostic symptoms and a pr ...

Description When the starting operation is carried more than five times consecutively under the following conditions, NATS will shift to the mode which prevents the engine from being started. ...
IDLE SPEED
Inspection
1.CHECK IDLE SPEED
With CONSULT
Check idle speed in "DATA MONITOR" mode with CONSULT.
Without CONSULT
Check idle speed by installing the pulse type tachometer clamp on the loop
wire or on suitable high-tension
wire which installed between No.1 ignition coil and No.1 spark plug.
...
P0734 4GR Incorrect ratio
Description
This malfunction is detected when the A/T does not shift into 4GR position as
instructed by TCM. This is not
only caused by electrical malfunction (circuits open or shorted) but by
mechanical malfunction such as control
valve sticking, improper solenoid valve operation, etc.
DTC ...